Sold as 32 each. 3/8" wall x 6' semi-slit. Polyethylene foam. -90 to +210 deg. F. Black. Bulk. Fits 1-1/4" Copper Or 1" Steel Pipe; R 2.0. Manufacturer's number: PR38138UWTUO. Buy Hardware Supplies SKU #: 46181. Country of origin: United States. Distributed by Industrial Thermo Polymer.